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The peculiarities of applying CAD/CAE systems for the primary combustion chamber flame tube cycle life prolongation of the tactical military aircraft afterburning turbofan jet engine

Pashchenko Serhii, Kharchenko Oleksandr, Shulhin Artem, Chemerys Yevheniy

Journal of KONBiN

2022

Vol. 52, iss. 4

167--176

In this article, the computational simulation of the workflow in the primary combustion chamber flame tube of the afterburning turbofan jet engine (ATJE) on the tactical military aircraft was carried out. The geometric model of a flame tube was created and adapted to perform the interrelated calculation of the thermal and stress-strain behaviour of the walls of the flame tube influenced by the operational loads during the computational simulation of the workflow. Quantitative and qualitative analysis of the simulation results was conducted, and the connection between the peculiarities of the workflow and the characteristic damage of the flame tubes, detected during the operation, was established. The possibility of using modern CAD/CAE systems to solve the scientific tasks towards maximizing the cycle life potential of the main and primarily important components of the ATJE on the assessment basis of their damage exhaustion degree was determined.